Dear Professor Zimmerman, I am studying MATPOWER Manual. I felt MATPOER very easy for power flow analysis. Thank you sir for implementing such a user friendly software. Thank You very much for your replay Regards,
P B Suresh Babu Asst Director Electrical MSME TC Chennai India ________________________________ From: Ray Zimmerman <[email protected]> To: MATPOWER discussion forum <[email protected]> Sent: Saturday, 21 September 2013 1:46 AM Subject: Re: Question about locational marginal prices In general the location marginal prices are simply the bus lambdas, found in results.bus(:, LAM_P). Please read the User's Manual and if you still have specific questions about MATPOWER usage, then feel free to ask them. If you need more details on MATPOWER's smart market code you may also be interested in the Technical Note 1 available on the MATPOWER home page: Uniform Price Auctions and Optimal Power Flow. -- Ray Zimmerman Senior Research Associate B30 Warren Hall, Cornell University, Ithaca, NY 14853 phone: (607) 255-9645 On Sep 20, 2013, at 1:23 AM, suresh babu <[email protected]> wrote: Hi, > > >Please send me MATPOWER coding to find Locational Marginal Pricing using DC >OPF in a 3 bus system. > > >P B Suresh Babu >ME Student Anna University >Chennai India >Working as >Assistant Director (Electrical) >MSME Testing Centre, Chennai. >Under Ministry of MSME, Government of India > > > >________________________________ > From: Haneen Mohammad dawoud Aburub <[email protected]> >To: MATPOWER discussion forum <[email protected]> >Cc: [email protected] >Sent: Thursday, 19 September 2013 9:01 PM >Subject: Re: Question about locational marginal prices > > > >Thank you so much for tthe help. I think the problem is because I am using >lossless DCOPF and the change in my hourly load profile is not that much, so >the sensitivity of LMP to laod change will be zero. I replaced (rundcopf) by >(runopf) to perform ACOPF. Also, I changed (OPF_ALG_DC) to (OPF_ALG), but I >got the following error: > >??? Error using ==> makeAvl at 73 >makeAvl: either Qmin or Qmax must be equal to zero for each dispatchable load. >Error in ==> opf_setup at 172 >[Avl, lvl, uvl] = makeAvl(baseMVA, gen); >Error in ==> opf at 219 >om = opf_setup(mpc, mpopt); >Error in ==> runopf at 96 >[r, success] = opf(casedata, mpopt); >Error in ==> run_3bus at 120 >results = runopf(mpc, opt); >What this error means? What should I do else to have a correct ACOPF? > >Thanks again, appreciate your help. > >----- Original Message ----- >From: sarab singh <[email protected]> >Date: Monday, September 16, 2013 10:42 pm >Subject: Re: Question about locational marginal prices >To: MATPOWER discussion forum <[email protected]> > >> It may happens when the network is not in congestion. >> > >> > >> > > >________________________________ > > From: Haneen Mohammad dawoud Aburub <[email protected]> >> To: [email protected] >> Sent: Monday, 16 September 2013 10:54 PM >> Subject: Question about locational marginal prices > >> > >> Hi, >> >> I used the DCOPF to get the locational marginal prices of a 3-bust system. >> The locational marginal prices that I have got are not changing with the >> change in load. Can you please tell me the reason of that. >> >> Thank you.> >> > > >
